git: f3895e983ce8 - main - vm_radix: Add iter lookup_le interface

The branch main has been updated by dougm:

URL: https://cgit.FreeBSD.org/src/commit/?id=f3895e983ce82474e3ae5825baa295ec1c923203

commit f3895e983ce82474e3ae5825baa295ec1c923203
Author:     Doug Moore <dougm@FreeBSD.org>
AuthorDate: 2024-11-09 19:32:58 +0000
Commit:     Doug Moore <dougm@FreeBSD.org>
CommitDate: 2024-11-09 19:32:58 +0000

    vm_radix: Add iter lookup_le interface
    
    Add a function to the vm_radix interface to lookup the greatest page
    less than or equal to some given page.
    
    Reviewed by:    alc
    Differential Revision:  https://reviews.freebsd.org/D47046
---
 sys/vm/vm_radix.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sys/vm/vm_radix.h b/sys/vm/vm_radix.h
index e1f7323dd205..561e36f2e164 100644
--- a/sys/vm/vm_radix.h
+++ b/sys/vm/vm_radix.h
@@ -257,6 +257,19 @@ vm_radix_iter_step(struct pctrie_iter *pages)
 	return (VM_RADIX_PCTRIE_ITER_STEP_GE(pages));
 }
 
+/*
+ * Initialize an iterator pointing to the page with the greatest pindex that is
+ * less than or equal to the specified pindex, or NULL if there are no such
+ * pages.  Return the page.
+ *
+ * Requires that access be externally synchronized by a lock.
+ */
+static __inline vm_page_t
+vm_radix_iter_lookup_le(struct pctrie_iter *pages, vm_pindex_t index)
+{
+	return (VM_RADIX_PCTRIE_ITER_LOOKUP_LE(pages, index));
+}
+
 /*
  * Update the iterator to point to the page with the pindex that is one greater
  * than the current pindex, or NULL if there is no such page.  Return the page.